Finding the Fourth Proportional to 91,493,051.10, 137,345,864.85 and 55,142,486.70

Step by Step Solution

1. Step 1: Write the proportion equation
   91,493,051.10 : 137,345,864.85 = 55,142,486.70 : x
2. Step 2: Convert to fraction form
   91,493,051.10/137,345,864.85 = 55,142,486.70/x
3. Step 3: Cross multiply
   91,493,051.10x = 137,345,864.85 × 55,142,486.70
4. Step 4: Simplify right side
   91,493,051.10x = 7,573,592,525,791,123
5. Step 5: Solve for x
   x = 7,573,592,525,791,123/91,493,051.10
6. Step 6: Final answer
   x = 82,777,789.51