Finding the Fourth Proportional to 105,317,312.31, 145,325,156.84 and 60,677,888.06

Step by Step Solution

1. Step 1: Write the proportion equation
   105,317,312.31 : 145,325,156.84 = 60,677,888.06 : x
2. Step 2: Convert to fraction form
   105,317,312.31/145,325,156.84 = 60,677,888.06/x
3. Step 3: Cross multiply
   105,317,312.31x = 145,325,156.84 × 60,677,888.06
4. Step 4: Simplify right side
   105,317,312.31x = 8,818,023,598,009,449
5. Step 5: Solve for x
   x = 8,818,023,598,009,449/105,317,312.31
6. Step 6: Final answer
   x = 83,728,148.82