Finding the Fourth Proportional to 20,936,856.51, 31,406,777.39 and 5,584,059.10

Step by Step Solution

1. Step 1: Write the proportion equation
   20,936,856.51 : 31,406,777.39 = 5,584,059.10 : x
2. Step 2: Convert to fraction form
   20,936,856.51/31,406,777.39 = 5,584,059.10/x
3. Step 3: Cross multiply
   20,936,856.51x = 31,406,777.39 × 5,584,059.10
4. Step 4: Simplify right side
   20,936,856.51x = 175,377,301,139,522.38
5. Step 5: Solve for x
   x = 175,377,301,139,522.38/20,936,856.51
6. Step 6: Final answer
   x = 8,376,486.75