Finding the Fourth Proportional to 60,979,875.84, 91,834,892.16 and 55,537,920

Step by Step Solution

1. Step 1: Write the proportion equation
   60,979,875.84 : 91,834,892.16 = 55,537,920 : x
2. Step 2: Convert to fraction form
   60,979,875.84/91,834,892.16 = 55,537,920/x
3. Step 3: Cross multiply
   60,979,875.84x = 91,834,892.16 × 55,537,920
4. Step 4: Simplify right side
   60,979,875.84x = 5,100,318,893,990,707
5. Step 5: Solve for x
   x = 5,100,318,893,990,707/60,979,875.84
6. Step 6: Final answer
   x = 83,639,378.13