Finding the Fourth Proportional to 105,174,608.56, 158,479,807.02 and 86,425,370.08

Step by Step Solution

1. Step 1: Write the proportion equation
   105,174,608.56 : 158,479,807.02 = 86,425,370.08 : x
2. Step 2: Convert to fraction form
   105,174,608.56/158,479,807.02 = 86,425,370.08/x
3. Step 3: Cross multiply
   105,174,608.56x = 158,479,807.02 × 86,425,370.08
4. Step 4: Simplify right side
   105,174,608.56x = 13,696,675,971,910,482
5. Step 5: Solve for x
   x = 13,696,675,971,910,482/105,174,608.56
6. Step 6: Final answer
   x = 130,227,971.94