Finding the Fourth Proportional to 9,965,316.42, 13,752,136.71 and 5,381,637.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,965,316.42 : 13,752,136.71 = 5,381,637.75 : x
2. Step 2: Convert to fraction form
   9,965,316.42/13,752,136.71 = 5,381,637.75/x
3. Step 3: Cross multiply
   9,965,316.42x = 13,752,136.71 × 5,381,637.75
4. Step 4: Simplify right side
   9,965,316.42x = 74,009,018,061,696.81
5. Step 5: Solve for x
   x = 74,009,018,061,696.81/9,965,316.42
6. Step 6: Final answer
   x = 7,426,660.12