Finding the Fourth Proportional to 9,268,384.77, 12,791,128.73 and 5,139,710.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,268,384.77 : 12,791,128.73 = 5,139,710.91 : x
2. Step 2: Convert to fraction form
   9,268,384.77/12,791,128.73 = 5,139,710.91/x
3. Step 3: Cross multiply
   9,268,384.77x = 12,791,128.73 × 5,139,710.91
4. Step 4: Simplify right side
   9,268,384.77x = 65,742,703,859,096.89
5. Step 5: Solve for x
   x = 65,742,703,859,096.89/9,268,384.77
6. Step 6: Final answer
   x = 7,093,221.26