Finding the Fourth Proportional to 37,874,061.18, 52,266,181.56 and 20,470,406.40

Step by Step Solution

1. Step 1: Write the proportion equation
   37,874,061.18 : 52,266,181.56 = 20,470,406.40 : x
2. Step 2: Convert to fraction form
   37,874,061.18/52,266,181.56 = 20,470,406.40/x
3. Step 3: Cross multiply
   37,874,061.18x = 52,266,181.56 × 20,470,406.40
4. Step 4: Simplify right side
   37,874,061.18x = 1,069,909,977,509,386
5. Step 5: Solve for x
   x = 1,069,909,977,509,386/37,874,061.18
6. Step 6: Final answer
   x = 28,249,148.47