Finding the Fourth Proportional to 89,005,478.12, 133,553,742.72 and 42,371,654.96

Step by Step Solution

1. Step 1: Write the proportion equation
   89,005,478.12 : 133,553,742.72 = 42,371,654.96 : x
2. Step 2: Convert to fraction form
   89,005,478.12/133,553,742.72 = 42,371,654.96/x
3. Step 3: Cross multiply
   89,005,478.12x = 133,553,742.72 × 42,371,654.96
4. Step 4: Simplify right side
   89,005,478.12x = 5,658,893,105,148,452
5. Step 5: Solve for x
   x = 5,658,893,105,148,452/89,005,478.12
6. Step 6: Final answer
   x = 63,579,155.18