Finding the Fourth Proportional to 105,174,280.45, 158,479,312.01 and 86,425,041.97

Step by Step Solution

1. Step 1: Write the proportion equation
   105,174,280.45 : 158,479,312.01 = 86,425,041.97 : x
2. Step 2: Convert to fraction form
   105,174,280.45/158,479,312.01 = 86,425,041.97/x
3. Step 3: Cross multiply
   105,174,280.45x = 158,479,312.01 × 86,425,041.97
4. Step 4: Simplify right side
   105,174,280.45x = 13,696,581,191,840,974
5. Step 5: Solve for x
   x = 13,696,581,191,840,974/105,174,280.45
6. Step 6: Final answer
   x = 130,227,477.03