Finding the Fourth Proportional to 9,003,718,128.87, 12,421,056,645.39 and 5,434,284,023.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,003,718,128.87 : 12,421,056,645.39 = 5,434,284,023.55 : x
2. Step 2: Convert to fraction form
   9,003,718,128.87/12,421,056,645.39 = 5,434,284,023.55/x
3. Step 3: Cross multiply
   9,003,718,128.87x = 12,421,056,645.39 × 5,434,284,023.55
4. Step 4: Simplify right side
   9,003,718,128.87x = 67,499,549,683,563,159,552
5. Step 5: Solve for x
   x = 67,499,549,683,563,159,552/9,003,718,128.87
6. Step 6: Final answer
   x = 7,496,852,824.30