Finding the Fourth Proportional to 9,769,937.31, 13,484,128.05 and 5,420,424.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,769,937.31 : 13,484,128.05 = 5,420,424.42 : x
2. Step 2: Convert to fraction form
   9,769,937.31/13,484,128.05 = 5,420,424.42/x
3. Step 3: Cross multiply
   9,769,937.31x = 13,484,128.05 × 5,420,424.42
4. Step 4: Simplify right side
   9,769,937.31x = 73,089,696,964,626.98
5. Step 5: Solve for x
   x = 73,089,696,964,626.98/9,769,937.31
6. Step 6: Final answer
   x = 7,481,081.47