Finding the Fourth Proportional to 86,402,123.09, 129,603,309.38 and 35,284,141.91

Step by Step Solution

1. Step 1: Write the proportion equation
   86,402,123.09 : 129,603,309.38 = 35,284,141.91 : x
2. Step 2: Convert to fraction form
   86,402,123.09/129,603,309.38 = 35,284,141.91/x
3. Step 3: Cross multiply
   86,402,123.09x = 129,603,309.38 × 35,284,141.91
4. Step 4: Simplify right side
   86,402,123.09x = 4,572,941,559,345,117
5. Step 5: Solve for x
   x = 4,572,941,559,345,117/86,402,123.09
6. Step 6: Final answer
   x = 52,926,263.80