Finding the Fourth Proportional to 129,669,818.16, 178,945,768.83 and 70,932,483.86

Step by Step Solution

1. Step 1: Write the proportion equation
   129,669,818.16 : 178,945,768.83 = 70,932,483.86 : x
2. Step 2: Convert to fraction form
   129,669,818.16/178,945,768.83 = 70,932,483.86/x
3. Step 3: Cross multiply
   129,669,818.16x = 178,945,768.83 × 70,932,483.86
4. Step 4: Simplify right side
   129,669,818.16x = 12,693,067,859,349,266
5. Step 5: Solve for x
   x = 12,693,067,859,349,266/129,669,818.16
6. Step 6: Final answer
   x = 97,887,604.37