Finding the Fourth Proportional to 117,233,857.72, 175,628,823.72 and 78,254,776.18

Step by Step Solution

1. Step 1: Write the proportion equation
   117,233,857.72 : 175,628,823.72 = 78,254,776.18 : x
2. Step 2: Convert to fraction form
   117,233,857.72/175,628,823.72 = 78,254,776.18/x
3. Step 3: Cross multiply
   117,233,857.72x = 175,628,823.72 × 78,254,776.18
4. Step 4: Simplify right side
   117,233,857.72x = 13,743,794,290,965,276
5. Step 5: Solve for x
   x = 13,743,794,290,965,276/117,233,857.72
6. Step 6: Final answer
   x = 117,234,001.83