Finding the Fourth Proportional to 30,748,658.64, 42,439,636.56 and 25,586,988.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,748,658.64 : 42,439,636.56 = 25,586,988.72 : x
2. Step 2: Convert to fraction form
   30,748,658.64/42,439,636.56 = 25,586,988.72/x
3. Step 3: Cross multiply
   30,748,658.64x = 42,439,636.56 × 25,586,988.72
4. Step 4: Simplify right side
   30,748,658.64x = 1,085,902,501,941,619.62
5. Step 5: Solve for x
   x = 1,085,902,501,941,619.62/30,748,658.64
6. Step 6: Final answer
   x = 35,315,443.01