Finding the Fourth Proportional to 109,515,139.50, 164,434,195.20 and 61,087,611.18

Step by Step Solution

1. Step 1: Write the proportion equation
   109,515,139.50 : 164,434,195.20 = 61,087,611.18 : x
2. Step 2: Convert to fraction form
   109,515,139.50/164,434,195.20 = 61,087,611.18/x
3. Step 3: Cross multiply
   109,515,139.50x = 164,434,195.20 × 61,087,611.18
4. Step 4: Simplify right side
   109,515,139.50x = 10,044,892,181,073,822
5. Step 5: Solve for x
   x = 10,044,892,181,073,822/109,515,139.50
6. Step 6: Final answer
   x = 91,721,493.73