Finding the Fourth Proportional to 5,281,820.38, 7,917,977.40 and 1,913,665.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,281,820.38 : 7,917,977.40 = 1,913,665.42 : x
2. Step 2: Convert to fraction form
   5,281,820.38/7,917,977.40 = 1,913,665.42/x
3. Step 3: Cross multiply
   5,281,820.38x = 7,917,977.40 × 1,913,665.42
4. Step 4: Simplify right side
   5,281,820.38x = 15,152,359,546,721.51
5. Step 5: Solve for x
   x = 15,152,359,546,721.51/5,281,820.38
6. Step 6: Final answer
   x = 2,868,776.00