Finding the Fourth Proportional to 113,352,869.31, 169,852,156.96 and 78,876,630.89

Step by Step Solution

1. Step 1: Write the proportion equation
   113,352,869.31 : 169,852,156.96 = 78,876,630.89 : x
2. Step 2: Convert to fraction form
   113,352,869.31/169,852,156.96 = 78,876,630.89/x
3. Step 3: Cross multiply
   113,352,869.31x = 169,852,156.96 × 78,876,630.89
4. Step 4: Simplify right side
   113,352,869.31x = 13,397,365,890,404,266
5. Step 5: Solve for x
   x = 13,397,365,890,404,266/113,352,869.31
6. Step 6: Final answer
   x = 118,191,678.53