Finding the Fourth Proportional to 31,054,135, 42,854,876.22 and 18,009,128.28

Step by Step Solution

1. Step 1: Write the proportion equation
   31,054,135 : 42,854,876.22 = 18,009,128.28 : x
2. Step 2: Convert to fraction form
   31,054,135/42,854,876.22 = 18,009,128.28/x
3. Step 3: Cross multiply
   31,054,135x = 42,854,876.22 × 18,009,128.28
4. Step 4: Simplify right side
   31,054,135x = 771,778,963,269,501.50
5. Step 5: Solve for x
   x = 771,778,963,269,501.50/31,054,135
6. Step 6: Final answer
   x = 24,852,695.57