Finding the Fourth Proportional to 99,530,796.09, 137,411,417.42 and 88,487,042.10

Step by Step Solution

1. Step 1: Write the proportion equation
   99,530,796.09 : 137,411,417.42 = 88,487,042.10 : x
2. Step 2: Convert to fraction form
   99,530,796.09/137,411,417.42 = 88,487,042.10/x
3. Step 3: Cross multiply
   99,530,796.09x = 137,411,417.42 × 88,487,042.10
4. Step 4: Simplify right side
   99,530,796.09x = 12,159,129,877,821,776
5. Step 5: Solve for x
   x = 12,159,129,877,821,776/99,530,796.09
6. Step 6: Final answer
   x = 122,164,499.39