Finding the Fourth Proportional to 28,553,100.21, 42,777,686.79 and 25,492,000.05

Step by Step Solution

1. Step 1: Write the proportion equation
   28,553,100.21 : 42,777,686.79 = 25,492,000.05 : x
2. Step 2: Convert to fraction form
   28,553,100.21/42,777,686.79 = 25,492,000.05/x
3. Step 3: Cross multiply
   28,553,100.21x = 42,777,686.79 × 25,492,000.05
4. Step 4: Simplify right side
   28,553,100.21x = 1,090,488,793,789,564.38
5. Step 5: Solve for x
   x = 1,090,488,793,789,564.38/28,553,100.21
6. Step 6: Final answer
   x = 38,191,607.42