Finding the Fourth Proportional to 60,445,949.41, 90,668,868.72 and 18,947,124.12

Step by Step Solution

1. Step 1: Write the proportion equation
   60,445,949.41 : 90,668,868.72 = 18,947,124.12 : x
2. Step 2: Convert to fraction form
   60,445,949.41/90,668,868.72 = 18,947,124.12/x
3. Step 3: Cross multiply
   60,445,949.41x = 90,668,868.72 × 18,947,124.12
4. Step 4: Simplify right side
   60,445,949.41x = 1,717,914,309,457,825.50
5. Step 5: Solve for x
   x = 1,717,914,309,457,825.50/60,445,949.41
6. Step 6: Final answer
   x = 28,420,668.82