Finding the Fourth Proportional to 86,771,947.86, 130,066,410.42 and 28,464,399.18

Step by Step Solution

1. Step 1: Write the proportion equation
   86,771,947.86 : 130,066,410.42 = 28,464,399.18 : x
2. Step 2: Convert to fraction form
   86,771,947.86/130,066,410.42 = 28,464,399.18/x
3. Step 3: Cross multiply
   86,771,947.86x = 130,066,410.42 × 28,464,399.18
4. Step 4: Simplify right side
   86,771,947.86x = 3,702,262,226,104,591.50
5. Step 5: Solve for x
   x = 3,702,262,226,104,591.50/86,771,947.86
6. Step 6: Final answer
   x = 42,666,579.67