Finding the Fourth Proportional to 117,090,479.16, 175,518,801.72 and 78,261,635.52

Step by Step Solution

1. Step 1: Write the proportion equation
   117,090,479.16 : 175,518,801.72 = 78,261,635.52 : x
2. Step 2: Convert to fraction form
   117,090,479.16/175,518,801.72 = 78,261,635.52/x
3. Step 3: Cross multiply
   117,090,479.16x = 175,518,801.72 × 78,261,635.52
4. Step 4: Simplify right side
   117,090,479.16x = 13,736,388,487,117,788
5. Step 5: Solve for x
   x = 13,736,388,487,117,788/117,090,479.16
6. Step 6: Final answer
   x = 117,314,307.58