Finding the Fourth Proportional to 91,045,983.79, 136,613,816.93 and 42,516,784.58

Step by Step Solution

1. Step 1: Write the proportion equation
   91,045,983.79 : 136,613,816.93 = 42,516,784.58 : x
2. Step 2: Convert to fraction form
   91,045,983.79/136,613,816.93 = 42,516,784.58/x
3. Step 3: Cross multiply
   91,045,983.79x = 136,613,816.93 × 42,516,784.58
4. Step 4: Simplify right side
   91,045,983.79x = 5,808,380,224,487,590
5. Step 5: Solve for x
   x = 5,808,380,224,487,590/91,045,983.79
6. Step 6: Final answer
   x = 63,796,116.89