Finding the Fourth Proportional to 131,139,004.86, 180,987,695.87 and 74,637,488.30

Step by Step Solution

1. Step 1: Write the proportion equation
   131,139,004.86 : 180,987,695.87 = 74,637,488.30 : x
2. Step 2: Convert to fraction form
   131,139,004.86/180,987,695.87 = 74,637,488.30/x
3. Step 3: Cross multiply
   131,139,004.86x = 180,987,695.87 × 74,637,488.30
4. Step 4: Simplify right side
   131,139,004.86x = 13,508,467,031,662,958
5. Step 5: Solve for x
   x = 13,508,467,031,662,958/131,139,004.86
6. Step 6: Final answer
   x = 103,008,765.75